package com.zzyl.serve.service.impl;

import cn.hutool.core.collection.CollUtil;
import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zzyl.common.constant.CacheConstants;
import com.zzyl.serve.domain.NursingLevel;
import com.zzyl.serve.mapper.NursingLevelMapper;
import com.zzyl.serve.service.INursingLevelService;
import com.zzyl.serve.vo.NursingLevelVo;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

/**
 * 护理等级Service业务层处理
 *
 * @author ruoyi
 * @date 2025-05-15
 */
@Service
public class NursingLevelServiceImpl extends ServiceImpl<NursingLevelMapper, NursingLevel> implements INursingLevelService {
    @Autowired
    private NursingLevelMapper nursingLevelMapper;

    /**
     * 查询护理等级
     *
     * @param id 护理等级主键
     * @return 护理等级
     */
    @Override
    public NursingLevel selectNursingLevelById(Long id) {
        return this.getById(id);
    }

    /**
     * 查询护理等级列表
     *
     * @param nursingLevel 护理等级
     * @return 护理等级
     */
    @Override
    public List<NursingLevel> selectNursingLevelList(NursingLevel nursingLevel) {
        return nursingLevelMapper.selectNursingLevelList(nursingLevel);
    }

    /**
     * 新增护理等级
     *
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int insertNursingLevel(NursingLevel nursingLevel) {
        removeCache();//删除缓存
        return this.save(nursingLevel) ? 1 : 0;
    }

    /**
     * 修改护理等级
     *
     * @param nursingLevel 护理等级
     * @return 结果
     */
    @Override
    public int updateNursingLevel(NursingLevel nursingLevel) {
        removeCache();//删除缓存
        return this.updateById(nursingLevel) ? 1 : 0;
    }

    /**
     * 批量删除护理等级
     *
     * @param ids 需要删除的护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelByIds(Long[] ids) {
        removeCache();//删除缓存
        return this.removeByIds(Arrays.asList(ids)) ? ids.length : 0;
    }

    /**
     * 删除护理等级信息
     *
     * @param id 护理等级主键
     * @return 结果
     */
    @Override
    public int deleteNursingLevelById(Long id) {
        removeCache();//删除缓存
        return this.removeById(id) ? 1 : 0;
    }


    @Autowired
    private StringRedisTemplate redisTemplate;

    /**
     * 删除缓存中的护理等级列表全部数据
     */
    private void removeCache(){
        redisTemplate.delete(CacheConstants.NURSING_LEVEL_LIST_KEY);
    }

    /**
     * 查询全部护理等级列表
     */
    @Override
    public List<NursingLevelVo> selectAll() {
        //1.从Redis中查询护理等级数据
        List<String> stringList = redisTemplate.opsForList().range(CacheConstants.NURSING_LEVEL_LIST_KEY, 0, -1);

        List<NursingLevelVo> nursingLevelVolist = null;//要返回的list

        if (CollUtil.isNotEmpty(stringList)){ //这里是查到了，把json字符串转成vo对象返回
            nursingLevelVolist = stringList.stream().map(x -> {
                return JSON.parseObject(x, NursingLevelVo.class);
            }).collect(Collectors.toList());
        }

        //2.如果没查到，就查询数据库表中的数据
        if(CollUtil.isEmpty(nursingLevelVolist)){
            //查询全部可用的数据
            List<NursingLevel> nursingLevelList = this.lambdaQuery().eq(NursingLevel::getStatus, 1).list();
            if (CollUtil.isEmpty(nursingLevelList)) {
                return new ArrayList<>();
            }
            //用map进行转，把实体的NursingLevel转化为Vo
            nursingLevelVolist = nursingLevelList.stream().map(x -> {
                NursingLevelVo Vo = new NursingLevelVo();
                BeanUtils.copyProperties(x, Vo);
                //3.将每条数据转成json字符串存入缓存
                redisTemplate.opsForList().leftPush(CacheConstants.NURSING_LEVEL_LIST_KEY,JSON.toJSONString(Vo));
                return Vo;
            }).collect(Collectors.toList());
        }
        //4.返回数据
        return nursingLevelVolist;
    }
}
